body{
	height: 100%; width: 100%;
	position: fixed; margin: 0; padding: 0;
}
.contenenr{
	position: fixed; width: 100%; height: 100%; left: 0; top: 0;overflow-y: scroll;
}

.middle{
	width: 1200px; position: absolute; left: 50%; margin-left: -600px; margin-top: 90px;
	height: auto; color: white;
}
*{
	padding: 0; margin: 0;
}
.navigation{
	display: flex;font-size: 22px;
}
.navigation>div{
	width: 100px;display: flex;justify-content: center;
}
.article_content_title_text{
	color: black;
}
.article_list_top{
	margin-top: 50px;
}
.more_nav{
	display: flex;justify-content: center; padding: 20px;
}
.more_nav>a{
	 color: white;
}
.article_content_title_text{
	color: black;
}